ACROSS
1. Palm whose leaves are used to make Panama hats
5. Perimeter of a lagoon, perhaps
9. Present at birth
10. Carbon’s sextet
11. Liquid component of blood
12. Brief message from an aviarist?
14. Long-leggers often rendered in origami
16. “Dephlogisticated air,” to Joseph Priestley
19. Earthy pigment used in cave paintings
21. Behaviorist whose name rings a bell?
24. Wattled beast in the Chinese zodiac
25. Domestic pest or freshwater fish
26. Exemplar of extinction
27. Fleet and graceful runners
DOWN
1.With 17-Down, author of My Life with the Chimpanzees (2 wds.)
2. Leg bone that’s Latin for “little pan”
3. With 22-Down, author of Journey
to the Center of the Earth (2 wds.)
4. Aspen or cottonwood
6. Get worn by time and weather
7. Aquascaper’s venue (2 wds.)...